> In my current house I have done 240V/50A wiring, 240V/50A Sub Panel,
> lots of 240V/30A outlets. None of which I would advise the usual
> amateur to do. :-)
IIRC nothing in the VAX cpu actually requires 3 phase. The PDU(s) just
eat that from the wall.
De
> I know that some IBM mainframes prefer 3ɸ power but I know of multiple
> people that have re-wired their CECs to use 1ɸ power.
My Multiprise 2003/205 claims to want a pair of 3-phase inputs. I've
run it on two "phases" on a single side. It bitches, of course, and one
loses the intended redun
> That's true generally. Anything other than actual photographs
> (continuous tone images) should NOT be run through JPEG because JPEG
> is not intended for, and unfit for, anything else. Printouts, line
> drawings, and anything else with crisp edges between dark and light
> will be messed u
> The scope does what it is supposed to, you get a time-domain
> visualization of voltage. Though, they are awkward to use due to the
> lack of rotary encoders. Scaling horizontally or vertically requires
> you to go into a menu, navigate to the right option, do the actual
> scaling and go b
> You may also want to look at the timing the list software uses for
> deciding when to notify people they've had excessive bounces; I got
> this on April *24*, fully two weeks after I stopped getting messages;
> a similar thing happened on March 21, but that one was only one week
> late:
Mod
> Specific to IBMPC to DECNET networking...anyone worked in this
> environment? Not me. I don't have the D drive that fails or the
> network, but I am curious what I would need to make this work. Maybe
> I can put something together. Anyone using a Digital Ethernet
> Personal Computer Bus
Friends,
The process of migrating the cctalk and cctech mailing lists to a new
host in Chicago is underway. This evening, I've moved the list mail
handling to the new server, and this message will be the first live
test. Assuming this works, you shouldn't have to change anything to
post to the l
Folks,
I've belatedly realized that it's going to be a bit of a headache to
implement the old cctalk/cctech crossposting duality under the new
version of mailman.
I seem to recall a discussion about retiring the cctech list and just
continuing with cctalk, and that the consensus was in favor of t
> Are the old posts all archived and searchable? I have a gap from 2016
> through 2022, and before that it is complete back to Mar 29, 2007 (I
> think it is complete).
I think I have cctech back to 2005 for import into the new mailman web
system. I also have the mailman2 pipermail archives tha
Folks,
I've migrated all of the cctech subscribers to cctalk, and removed the
cctech list. I've tried to arrange that mail sent to cctech gets
forwarded to cctalk, but that may require a bit of tuning.
I do still have the various posting archives which will make an
appearance in the (hopefully)
> Are these vacation messages becoming a problem? We never saw then
> before.
Maybe. Has the blasted thing replied to the list more than once now?
De
> I followed the suggestion in a previous message to logon to the new
> server and set my desired list settings. Now I show up with two
> subscriptions for my email address, one as "nonmember" and the new
> one as "member". It does not appear that I am receiving doubles
> delivery of messages,
Does anyone know of a tool that can convert from one or more vector
image formats to ReGIS? For use on unix-ish platforms.
De
> I'm conflating my Sixel work with my ReGIS work. I know that there
> are a number of utilities to work with Sixel, but it seems like there
> are fewer that work with ReGIS.
Indeed. I've fiddled with Sixel in xterm, for example. It turns out
ReGIS is hard to google, partly of course because
> Those are good examples, but is it "many" or just those two and maybe
> one or two more? For example, Burroughs and IBM mainframes were both
> very much "lights and switches" control panel type machines. For
> that matter, so were the other CDC products; the 6000 series was a
> bit of an o
> I was curious if anyone recognizes this punched card reader. Marked:
> AMP Incorporated - SYSCOM Division.
Can't help with the identity, but I'm loving the 9 edge hanging out the
front in contravention of the instruction label! :)
Apparently AMP didn't know the "face down nine edge first" son
> I don't know that as a song, but it's one of the final lines of the
> poem "The Last Bug".
"Now I will do nothing but listen, To accrue what I hear into this song,
to let sounds contribute toward it."
De
> I was thinking about acquiring a Kryoflux in the next few months and
> starting to collect better quality images of disks. I recently saw
> someone on Twitter suggest that Kryoflux wasn't the best route to go
> and suggested a SuperCard Pro instead.
Some people are bothered by Kryoflux's be
> Is there a reason to do a real IMAGE backup, rather than a file
> backup?
People have occasionally found interesting things in the unallocated
sectors of disks. For garden variety PC format disks, it's not
necessary to do flux imaging to preserve that sort of thing, though. A
regime using a
> Is Constant Linear vs Angular Velocity (?) anything I need to worry
> about when sticking within the IBM PC compatible line from say '90
> forward?
There aren't that many platforms that used CLV drives. I don't recall
seeing one in the PC world. If anyone did, they would have been
specialty
> I have received four digest emails since noon: 2:57PM (8 msgs), 3:47
> PM (7 msgs), 5:44 PM (7 msgs), and 8:24 PM (6 msgs). (Yes, all
> embedded messages are different.)
I dug into the list digest settings a little. It looks like the way the
migration tool set them doesn't match the old beh
> Has anyone else noticed that the list server is screwing up digest
> emails, starting with Volume #115?
Stan,
Your subscription was set to "Summary Digest". I've switched it to
"Plain Text Digests". Let's see if that makes things better.
De
> Then I'd image the tape with Tapeimgr and see if I could figure out
> what software was used. I've reverse-engineered a few, Retrospect and
> one other, I think I uploaded it all to my Github.
Phil's overall process is good, but you shouldn't use `dd` to image
tapes. It discards tape block l
> Anyone have a dump of the KDJ11-E M8981 11/93 EPROM firmware?
> That would be U106 377E7 V2.01 (I assume the full part number would
> have been 23-377E7)
size 65536
sha256sum f3a4a9932c99a316709ae3f34580478d16b0498ad5af1809f7e7193417498618
url https://yagi.h-net.org/1193_u106_ha99
> I’m working on a project, and I need to know the age of various tape
> formats. For example when were 6250bpi 700’ 9-Track tapes or DC600A
> cartridges introduced? Is there any good resource online that
> documents this? Wikipedia is of some help, but the older you go, the
> spottier it i
> Wow! I'd love to see the 1971 vintage GCR tape controller, it must
> have been the size of a 360 CPU! We had a GCR controller from
> Storage Tech. in 1982 or so that was the same size as a PDP 11/44
> large cabinet. CDC Keystone drives (92185) had it integrated into
> the 680x controller
> A friend gave me a DEC VK100 (aka GiGi) recently. It's in really nice
> shape, but it is missing the power supply. Before I try to kludge
> something up with an ATX supply, I thought I'd ask if anybody knows
> where I might find an official replacement.
The board in the supply is an Astec, s
> Kludging something up with a modern supply looks fairly easy; there's
> plenty of room in there, but it will be ugly. Don't know what I'll
> do about the fan, but the VK100 logic itself probably doesn't need a
> fan so whatever is built into the ATX will be enough.
At least the ATX won't be
> Does anyone here know if the Beaglebone Black Industrial is he same
> as the regular Beaglebone Black? I have a couple of the MFM Emulator
> boards to build and will need a couple Beaglebones for them.
They're supposed to be the same except with expanded operating
temperature range.
You kno
> Yes, but I am pretty sure it doesn't have the ethernet. And I found
> a bargain on the Beaglebone Black Industrial.
It does have ethernet. They dropped the HDMI output. But the main
advantage is price, so if you already found a deal, win.
De
Folks,
As I try to track down why various subscribers are getting booted from
the list in the last couple of days, I'm noticing that a number of you
are subscribed from an address that forwards elsewhere.
This works poorly.
TL;DR follows, but basically this is brought to you by the fact that
mod
Folks,
A heads up that I've turned on some mail veracity signing functionality
in Mailman. One could hope it would just work, and that I made no
mistakes in the configuration, but... :)
I'm working on this to try to improve deliverability of list traffic.
De
I think I know the answer to this, but just in case:
Is there a way to image ESDI disks other than to hook them up to their
usual host controller and use the host? E.g. for MFM, I'd grab the MFM
Emulator board.
Cheers,
De
> Is there any way to change the orientation of an object on the table
> using just the STL file?
Creality's slicer software is a fork of Cura.
Cura can rotate objects on the platform during the slicing process. Not
sure I've ever actually used Creality's version, but in the more generic
versi
> At the most recent CoCoFEST!, I brought home the old Glenside Club
> Computer Hard Drive. The mechanism is an ST-251, and I was wondering
> if someone on-list would be willing to attempt to pull data off the
> drive. I have no ability to configure to read this drive type, and
> the data is
> Is there anyone who could copy a MDS-800 key for me? I would cover
> expenses...
If someone has one, let's get it added to the ccmp keys list: blank
type, cut info, etc.
De
> That would have been the CPU cabinet for the C240 (which is twice as
> wide as the C220^1s CPU cabinet. The C240^1s CPU consumes -
> i.e. converts to heat - about 20 kilowatts of power, so that would
> indeed have created a hotspot in a computer room. It will surely
> create a hotspot in my
> Yeah, you usually are better off not sending messages. Inexplicably,
> I once got a good deal out of him on an Altair 8800B Turnkey
> system. It arrived very poorly packed, which was actually surprising,
> given the price and his feedback (he does indeed move items, I've
> ended up with a fe
If we can id the Chicago double-sided key Mike _does_ need, I can
probably make it.
The CCL 4T1427 key, which is NOT what Mike needs, would be cut on an
Ilco S1003A blank, cuts 1427 bow-to-tip.
The CAT99 key I see referenced in the list archives (might open a cab
back door) would be on an Ilco S1
> Unmarked - single sided in an HP 1000 M-series; looks like a cheap
> generic cam lock, may be a post-sale replacement lock (due to too
> many keys extant, or the boss wandered off with the key) It is
> definitely NOT a match for either of the keys that Dennis described.
> Cuts from bow to ti
> I received a key that was made based on the Chicago Lock H2007 key in
> Christian's picture:
> It works!
> I've asked our resident keymaster to post any specifications needed
> to duplicate this key.
The key is an H2007. This is one of the Chicago double-sided types.
The keyblank is an I
> The tricky bit to cutting them is that when Chicago designed them, they
> developed several hundred unique curves instead of a set of numbered cut
> depths. However, manufacturers of numerical key machines have worked it
> out, probably by pretending there are a large number of cut positions.
C
> If/when you get around to it, start by sorting by blank.
Good thought.
> On the double-sided Chicago keys, if you have an extra that matches
> H2007, send one to Dennis to use as a "master" for subsequent demand.
Not necessary, as I have a full set of pattern keys.
I'd be interested in a c
> > It is important to keep everyone aware of phishing attempts, but it's=20
> > also important to make sure when you send warning emails to simply=20
> > delete the actual URL that the criminals provide so that nobody=20
> > accidently clicks on something...
> As someone that tends to invest
> Starting to go through my boxes of POS stuff. I know of course that
> 3.2 is out there (minus the Pro/Communications option which has a bad
> disk in the distro) however are these disks out there now?
I appear to have diskette sets including Pro Hard Disk 3.0, a 3.1 update
set, DECnet Pro, CO
> Wait! There is a SCAMP other than Burroughs' Single Chip A-Series=20
> Mainframe Processor.
And then there's the SC/MP.
De
> I'm looking for a good inventory program to help me keep track of all of
> my PDP-8 stuff.
> I would like to keep track of physical location, board etch revision,
> board modification revision, bus type, where used, etc.
If you're using a unix-like operating system, GCstar seems relativel
> I would also appreciate any recommendations for database software.
In addition to GCstar, which is an application you run on your
workstation, there are some open source collection management tools
aimed at museums and the like. Most of the latter probably require some
server side support. A
> Surely you hyperbole.
Since it's used in Android for various things, and in Firefox and
Chromium for various things, he's not in the least.
De
> This dislike of “Discord” has touched a nerve for me. It’s also one
> of the reasons the cctalk list has lost most of it value. Discord is
> a collection of channels most devoted to specific subjects that you
> more or less subscribe to. It’s just a server and you need an invite
> to join
> Ive got a tape here from what I believe to be a VM system. The
> structure is unknown to me, although I can possibly take a stab at
> it. Lots of data between tapemarks that seems to consist of a number
> of records that start out something like this (translated from
> EBCIDC):
I think th
> The distance between the CMS header and the CMSN header appears to be
> much larger than 800 bytes--the first, for example is about 4K . The
> next CMS file name header follows about 80 bytes later.
Later versions of the filesystem would be more likely to use 2k or 4k
blocks.
> I don't see
> I slept on the problem a bit--good thing that I'm old; I like to
> sleep--and think that I've got it sussed out.
:)
> Tape appears to consist of 4101 byte blocks, each with a "/02CMSx"
> header; the first one seems to be "CMSF" with the intervening ones being
> "CMSV" and then a final 87 b
> According to a warning on the site: "After many years of service,
> hobbes.nmsu.edu will be decommissioned and will no longer be
> available. You the user are responsible for downloading any of the
> files found in this archive if you want them. These files will no
> longer be available for
Does anyone have or know of an archive of old mod.sources (predecessor
of comp.sources.unix) posts? I know googlegroups has it, but that only
means nothing since it's effectively inaccessible there.
De
> Maybe https://archive.org/details/usenet-mod It includes
> mod.sources.mbox.zip
Thanks, didn't think of that. I've found things in there before.
That takes us back into 1984. The net.* hierarchy is also in the same
collection, and its net.sources mbox goes back to ~1982.
Anyone know of an
> How much is older than that? I didn't think uucp got going until V7
> was released outside of AT&T in 1980 or 81... I'm sure someone
> will correct my notions though :)
If memory serves (hahahalolrofl...) the origins of usenet go back to at
least 1980. (Ignoring the Plato history.)
What set
> Googling for "mirror uxc.cso.uiuc.edu" found me one hopeful hit:
> https://www.funet.fi > pub > misc > Notes.README
Ron,
Another good search approach that I hadn't thought of. Many thanks!
De
> Did something happen to comp.os.vms and/or usenet? All the DEC
> newsgroups appear to be missing from Eternal September.
There has been a huge flood of spam originating from google, in various
newsgroups, for a few months. I saw 15,000 one day in comp.os.vms
alone. This problem has prompted
> I thought, at first, some dirt or debris had gotten stuck there, but
> on closer look I saw something black below the keys that seemed to be
> stuck. I pulled a key cap off and found a U shaped piece of black
> plastic that was put there on purpose to prevent you from depressing
> the key.
> I have often wondered about the people we find in the various DEC
> Processor (and other) books. Were they models in staged
> photo-sessions or were these candid shots from DEC facilities and if
> so, can anyone identify who they might be.
Someone asked this about the covers of the old Prim
Cheyenne is a nice basement system. Only needs 1.75 MW.
The system which replaced Cheyenne is Derecho, a 19.8 petaflop system.
https://news.ucar.edu/132904/scientists-nationwide-launch-first-projects-new-ncar-supercomputer
Last fall, NOAA/NWS replaced theirs (one in Manassas, one in Phoenix)
wi
> I wouldn't think it would work much better than a light bulb, though.
Load it up with a wide range tuner, and you could probably make contacts
across three states, though, just like the light bulb. :)
De
Folks,
This thread needs to end here, please. I'd rather not have to break out
the emergency moderation flag and the banhammer.
De
For irrelevant reasons, I noticed the other day that the
parts-for-power-plants mafia and ebay sellers are all asking $45 - $120
for a Sun 330-2014 key. WTH.
If you don't care about the purple plastic on one end, I'm pretty sure
that you can make these thusly:
Ilco 1043J aka IL11, cut 34244
> I'm trying to source a new I/O cable for a Convergent WorkSlate (this
> one is grody from degenerating plasticizers). It's 8P8C with a little
> offset snag reminiscent of a DEC MMJ, but it's the width of an RJ-11:
> while an "RJ-45" Ethernet cable is too wide, a phone handset cord is
> the r
Folks,
Once again, it seems I need to ask everyone to drop this discussion. I
_still_ don't want to have the moderation flags and banhammers.
De
> The card cage has a VERY strong DEC look to it - probably LSI-11.
The tape drive is a rebadged Cipher streamer.
The two disk are Priam devices, in spite of the Xentek label on the one.
De
> Could we please keep politics off this list? I could argue at length
> about this topic but I'm not going to, this list is not the forum for
> that.
*clears throat*
Yes, what Paul said, please.
De
ᕙ( ︡’︡ 益 ’︠)ง▬▬█
> IFBR14 if you all are not familiar with MVS / MVT batch programming
> is a program which immediately terminates w/o any return codes by
> doing an assembly language return to the caller of the job step via
> the contents of R14 of the processor, which is also the return
> address.
Actually,
> How come there are 8? The lock only has 7 pins.
> Also which is pin 1 and which direction do they number?
There are 8 possible depths, as Ethan listed.
The lock has seven pins, with the depth indexes Ethan listed.
Conventional pin numbering is to look into the lock, number from 1 CW
starting
> That's all I could find, too. If anyone knows where the source might
> be or stumbles on it, I would definitely be interested as well.
I think that's Hector Peraza's site. His email address is listed; you
could try writing to him.
De
> I just double-checked and the drive pinouts match the DEI CMTD-3400 manual
> I know, it isn't obvious at all from the maint manual..
Was this thing referred to as a "Funnel"? Maybe that was a Prime
specific name though.
De
> Mine has two entries:
> tms 0 174500 2605 tmsintr # tmscp driver
> tms 1 164334 0 5 tmsintr # tmscp driver
You set the vector on the second one to zero. Should it be
something else?
De
> * Is there a way to "read" the core non destructively using any kind
> of passive method (I know, it would be tedious, no doubt, but I just
> feel like I should "backup" the core before I go messing with it)?
I'm having trouble figuring out what typical magnetic field strengths on
t
> What is that wonderfully evil looking computer halfway down the
> pictures with all the red blinkin LEDs? That would make a wonderful
> centerpiece to an evil lair!
I didn't realize they had a Connection Machine. And apparently it at
least powers up? Neat!
De
> I got a great pair of cables for this project. 50 conductor, 50 pin
> IDC, 10 feet long.
So the minicomputer vendors in the 80s typically used twisted pair
ribbon for these things, as in the 1700/50 stuff Glen was talking
about. I don't know how long a cable would need to be for that to be
c
> I'm building my own 8-bit CPU from TTL chips, and this caused me to
> think: how were 32-bit minis built in the late 70s and early 80s? In
> particular, how was the ALU built? I know about the 74181 4-bit ALU,
> and I know (from reading A Soul of a New Machine) that PALs were also
> used.
I
> Prime used 74181 chips for some of their CPUs. I have a 150 CPU
> board (1980, though it was likely a relatively minor rehash of an
> older board), for example.
To extend this comment, I found 74S181 chips in the schematics for
Prime's first machines, the P100/P200/P300, with dates of 1972-7
> · SMTP(S)
FTP was used before SMTP existed.
De
> · FidoNet (FTN)
As long as we're being silly, this isn't really one protocol. There are
a number of different ones, which can probably mostly be characterized
as thin wrappers (FTS-0001, Yoohoo(/2u2), etc) around common file
transfer protocols (zmodem, xmodem, and others).
De
> Coating the tape with a film of cyclomethicone allowed it to be
> successfully read.
I'm curious what mechanism you use for the coating?
De
> It doesn't work when I use a pair of 5 foot long flat ribbon cables.
> Are they too long? Do I need twisted pair type of cable? Is it
> possibly a termination problem?
These cables typically were twisted pair, at least inside cabinets.
(They might transition to round cables at bulkheads bef
> I've gotten the distinct impression that US board houses really are
> only interested in government/military/aerospace work. I've often
> wondered what it would take to set up a modern "no human interaction"
> line and if one could be even a little competitive with the Chinese
> on it.
Base
Folks,
I've determined that the piece of my S/23 that's causing the power
supply to blow its 12V fuse is the machine update card. The manual says
this provides additional R/W storage for microprogram updates. That
sounds like something that wouldn't be necessary for normal operation.
Questions:
> The uCode in the S/23 is 8085 assembly code that is contained within
> the ROMs. The ROMs have the ability to be patched and the card
> you’re referencing is used to hold those updates. So without that
> card you’re not able to apply any ROM updates (which are loaded each
> boot).
Ah, ok,
> I gave a 2250 away two decades ago. With no software to run
> (legally) they just make good doorstops.
While Bill's certainly welcome to operate according to the above, all
indications are that nobody gives a rat's ass any more about that IP.
De
> Is this a conscious choice, or a configurable with a different
> default setting in a new mail system than was previously in place?
> However it came to be, it greatly diminishes communications quality
> (IMAO).
You can blame me for the change to the way the From: header is handled.
The purp
> I have a rather crude way of reading 9-track tapes in 1600 and 6250
> BPI densities. I have worked out how to unpack VAX BACKUP format
> tapes, if that is how they were written. I have read some tapes that
> were about this old, but they have been stored in excellent
> conditions, and they
> > What’s the best way to restore a dull BOT marker
> replace it
> there were rolls of brady BOT tape on ebay but I don't see them now
Actually, it would be helpful when googling to know what this sort of
thing is used for in the _modern_ world. Presumably any NOS on ebay
that was made to be
The Philips P92xx series was the rebadged x16 stuff.
De
> someone just posted this on twitter they seem to have sent an email
> to everyone and didn't bother to mention this
I'm subscribed to five or six on the account I used to try that
"service". They eventually (day or two later) sent me the "your
download is ready" email, and when I logged in, t
> I need to get the information on measuring the depths of the cuts, as
> the postings I've found don't mention how the depths are measured for
> each value.
For Chicago/ACE, cut depths from 1 to 8 respectively are:
0.0155" 0.0310" 0.0465" 0.0620" 0.0775" 0.093" 0.1085" 0.1240"
For Fort/GEM,
> I found another reference. different numbers slightly.
These are just rounded from four places to three. Since the step is
.0155, the tolerances are probably a couple of thousandths anyway.
> What I have measured so far. This starts with the index up, first
> slot to the right, going CCW.
> Sure you meant CCW from one o'clock?
Sorry, you're looking into the end of the key, and this makes sense. My
bad.
De
> As far as multi-page documents, it seems as if my scanner (or its
> software) only does uncompressed TIFF. At bitsaver's recommended 400
> dpi, that means about 4M per page.
If you're on unix of some sort, the libtiff tools can convert these
uncompressed images to G4. The command you'd use woul
> Well, I have the dBit FDADAP. Works great. I have used them before
> on a PC to access PDP-11 disks from PUTR and E11. The P112 claims to
> support 8" but I am finding it unlikely. If it (well, at least the
> OSes it runs) don't even know it only has 77 tracks I can't see how
> anyone ha
> The menu you get when you hit Escape on startup has an option for
> setting a floppy as 8". Mine is ROM 5.7 which I believe is the next
> to last. Unless it is different than the other CP/M systems I have
> FORMAT should have no hardware dependent code in it. It was the OS
> that tracked
> I ran across this modem (circa 1982) and saved it, but I have no idea
> on how to control it. Bitsavers doesn't seem to have a manual for
> it.
You might try the v.25bis command set:
https://www.itu.int/rec/T-REC-V.25bis-199610-I/en
De
> Initial value would be zero; that's common for several of the older
> CRCs (including CRC-CCITT used by DDCMP).
The other common initializer seems to be 0x.
De
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